<template>
  <div id="app">
    <router-view />
  </div>
</template>

<script>
export default {
  name: 'App'
}
</script>
<script language="javascript">
    //防止页面后退
    history.pushState(null, null, document.URL);
    window.addEventListener('popstate', function () {
            history.pushState(null, null, document.URL);
    });
</script>
